v3.19.1
Securities Sold Under Agreements to Repurchase (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Amortized Cost    
Assets Sold under Agreements to Repurchase [Line Items]    
Investment securities pledged to secure the underlying agreements at year end: $ 22,745 $ 21,838
Fair Value    
Assets Sold under Agreements to Repurchase [Line Items]    
Investment securities pledged to secure the underlying agreements at year end: 22,524 21,929
Securities sold under agreements to repurchase    
Assets Sold under Agreements to Repurchase [Line Items]    
Average amount outstanding $ 10,596 $ 9,684
Average rate paid during the year 1.38% 0.15%
Maximum amount outstanding at month end $ 12,445 $ 12,472
Securities sold under agreements to repurchase | Amortized Cost    
Assets Sold under Agreements to Repurchase [Line Items]    
Investment securities pledged to secure the underlying agreements at year end: 16,032 14,405
Securities sold under agreements to repurchase | Fair Value    
Assets Sold under Agreements to Repurchase [Line Items]    
Investment securities pledged to secure the underlying agreements at year end: $ 15,862 $ 14,475